Rhynchostylis Blume,
Bijdr. (1825) 285 ['Rynchostylis']
Monopodial epiphytes. Stem relatively short, with many distichous leaves. Leaves sheathing at the base, glabrous, deciduous, duplicate. Inflorescence lateral, a many-flowered raceme. Flowers medium-sized, showy. Sepals free. Petals free, shorter and narrower than the sepals. Lip spurred, not mobile, without lateral lobes, mid-lobe dorso-ventrally flattened. Column-foot short. Pollinia 2, cleft, solid, caudicles absent, stipe linear, widened at the apex, viscidium present.
Distribution
Continental Southeast Asia, Peninsular Malaysia, Sumatra, Java, Borneo, Philippines; 4 species.
Distribution in the Philippines
Luzon (Tarlac, Nueva Vizcaya, Nueva Ecija, Zambales, Bataan, Bulacan, Rizal, Cavite), Palawan, Panay; 2 species.
Habitat
Epiphytes in lowland, sometimes in montane forest.
Notes
A widely cultivated genus, closely allied to Aerides, from which it is distinguished by the not 3-lobed lip and the short column-foot.